Question

1. A bag contains 15 red balls and 6 blue balls. Find the probability of picking at random a blue ball from the bag.

Answer 1

Answer:

• 2/7
• 3/7
• 3/5
• 1/3
• 5/11
• I Hope it helps

Step-by-step explanation:

$probability \: = \\ \frac{event}{total \: no \: of \: possible \: outcome}$

$15 \: red \: balls \\ 6 \: blue \: balls \\ probability \: = \\ \frac{event}{total \: no \: of \: possible \: outcome}$

1.

$6 + 15 = 21 \\ p \: = \frac{6}{21} \\ p \: = \frac{2}{7}$

2.

$6 \: white \: balls \\ 8 \: red \: balls. \\ 6 + 8 = 14\\ p \: = \frac{6}{14} = \frac{3}{7}$

3.

$12 \: red \: balls \\ 8\: blue \: balls \\ 12 + 8 = 20\\ p = \frac{12}{20} = \frac{3}{5}$

4.

$4 \: blue \: balls \\ 8 \: red \: balls \\ 4 + 8 = 12\\ p \: = \frac{4}{12} = \frac{1}{3}$

5.

$6 \: blue \: balls\\ 5 \: black \: balls. \\ p \: = \frac{5}{11}$